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  #1  
Old 08-02-2020, 05:01 AM
Ash Nightingale Ash Nightingale is offline
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Default Cracks in Ziricote! Advice Appreciated!

I am building a guitar for a client paying full price. The second time I have ever used Ziricote. The first time I used this wood it was beautifully dry, stable and seemed relatively easy to work with. This latest guitar, the more I look at the wood the more I see tiny shakes, cracks and separating grain.

I have managed to position my body shape in such a way that all (i thought) of the cracks were trimmed off and discarded. However today when final thicknesssing the back I have spotted 2 more tiny cracks.

The last thing I want is to send the finished guitar and have it returned a few months down the line with problems that are very costly and time consuming to fix, not to mention the horrible inconvenience for the client. This is my concern currently.

So i believe I have a few options but I would appreciate advice from others:
1. fill the crack with thin CA and glue a small piece of veneer inside to stop it from spreading and continue with the build?
2. Speak to my wood supplier and see what they can do for me, also get information about the age of the wood and how it was dried/seasoned etc?
3. Speak to the client and ask if they would be open to using a different kind of wood that is less prone to this issue?

TIA
Ash Nightingale
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  #2  
Old 08-02-2020, 06:58 AM
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kkrell kkrell is offline
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I don't think it's an easy question to answer. As a client, I'd want to be consulted, unless the issues are really trivial & left to the experience & expertise of the builder.

#1 if I was enamored of the set & the problem can be mitigated.

#2 if better material is available.

#3 if guidance to different materials is acceptable to me.

You forgot #4 - cancellation.
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Old 08-02-2020, 09:10 AM
Kerbie Kerbie is offline
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Bump to the top and please welcome a new sponsor! Thank you, Ash.
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Old 08-02-2020, 09:53 AM
charles Tauber charles Tauber is offline
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You havenít posted photos of the wood for those here to assess the magnitude of the problem. You also havenít stated the circumstances by which you purchased this particular set of wood.

The safest choice is simply to select another set of wood, probably Ziricote since that was what was commissioned. If need be get input from the customer concerning the specific set, if he or she had input on the selection of the first set.

Certainly, you can take it up with your supplier. You havenít provided us any details about how you have maintained the wood since you purchased it, or how long ago you purchased it. Sometimes there are defects in the wood that canít be seen until you start working it. It is unclear whether thatís the sellerís problem or yours, or what the seller feels is their liability in it.

The CA glue and veneer will likely work fine but you might not know if you missed a check until after the finish is applied or later, what you are trying to avoid happening.
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Old 08-02-2020, 10:14 AM
PeteD PeteD is offline
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I'm not an expert at all, but I recently asked a pretty well known luthier who hangs around here a bit about the use of Ziricote for this same reason...tendency for cracks. He informed me that he likes to use Ziricote, but tends to flood it with CA to help with small cracks and stability.

Not sure if that is an option at this stage of your build or not, and I'm sure better luthiers can weigh in on this as an option.

Another thought is to use a product like FastCap 2P10 for grain filling and it might create some crack stability. Good video on Youtube if you want to check that out as a possible option.

Good luck with the build!
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Old 08-02-2020, 03:25 PM
redir redir is offline
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Pics would help. I'm not a fan of CA for such repairs preferring Tirebond or HHG.

Since it's for a client option 2 is probably best.
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Old 08-02-2020, 05:15 PM
runamuck runamuck is offline
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Is your Ziricote quarter-sawn?
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Old 08-03-2020, 09:53 AM
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Simon Fay Simon Fay is offline
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Wenge and Ziricote are two woods that I always flood the surface with thin CA glue. This also helps you see if there are any issues as the glue will wick from one surface to the other if you have a crack that runs through the board.

Also, you are discovering firsthand why these woods come with a significant upcharge to the customer. On the surface, it may look like Ziricote is only a few hundred dollars more than a set of Indian rosewood -- but that is far from the case.
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Old 08-03-2020, 11:06 AM
redir redir is offline
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FWIW I flood BRW with thin CA too.
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  #10  
Old 08-03-2020, 11:41 AM
Howard Klepper Howard Klepper is online now
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Easy question. Your set is showing multiple checks and flaws, and you have yet done anything besides thicknessing it. That's enough information, even without photos. If you take pride in your work, don't use it.
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